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University of California, Berkeley, scientists say an early-warning system gave them a 10-second alert when a 6.0-magnitude earthquake struck southwest of Napa early Sunday morning. Michelle Roberts reports. (Published Monday, Aug. 25, 2014)

Updated at 11:42 PM EDT on Monday, Aug 25, 2014

University of California, Berkeley, scientists say an early-warning system gave them a 10-second alert when a 6.0-magnitude earthquake struck southwest of Napa early Sunday morning.

A video posted to YouTube shows the ShakeAlert countdown moments before the temblor was expected to be felt at the UC Berkeley Seismological Laboratory. It also sent a warning to users in San Francisco, Oakland and San Jose, according to the video description.

Newsom added that earthquake detection should be a top priority. He said he would like to see the Governor's Office take the issue more seriously.

"We have the technology," Newsom said. "We could provide at least a little bit of warning."

Baby Monitor Video Shows Shaking from Napa Quake

Video taken from a baby monitor shows how strong the Napa quake was felt in San Francisco. (Published Monday, Aug. 25, 2014)

Serious policy conversations about early-detection technology are likely to take place in the coming weeks, but immediately, the state's focus will be on providing support to local first responders. Once the dust has cleared and the damage assessments have been filed, Newsom said he hopes California gets an early start on receiving early notice for the next big regional earthquake.

Richard Allen, director of the Berkeley Seismological Laboratory, said construction of the system along the West Coast would take around $38 million. The annual operational costs of the program would be roughly $16 million.

Surveillance Video Captures South Napa Earthquake

The warning could come from many different sources including radio, television or smartphone applications.

UC Berkeley is hosting a conference on "Implementing Earthquake Alerts" in September to "address current challenges, lessons learned from systems currently in operation worldwide, and ultimately forge a path toward fulfillment of public early warning systems in the U.S. and around the world."